Working with the phone-book and accessing, adding and modifying contact can be useful for users depending on the functionality your app works upon.
No built-in Visual Coding blocks for working with phone-book contacts are currently available, but you can still use your own code to take advantage of this feature.
You can always use your own custom JavaScript code to work with phone-book contacts.
Aquro is using the cordova-plugin-contacts plugin for this.
Learn more at https://github.com/apache/cordova-plugin-contacts/
